Posted: Jun 21, 2022 7:26 am
by Spearthrower
Dark colours absorb more visible light (which is why they seem 'dark' to us as less light is bouncing away), whiter colours reflect more (more of the spectrum is scattered back out, being perceived as 'white'). The more light absorption in a solar cell, the better!

I also believe that the material structure of the panels which are naturally darker coloured are more energy efficient structurally additional to the better absorption of the darker colour.

Hold on, let me google the word I am looking for.... aha! A monocrystalline cell!

Blue panels are silicon cells, black panels are monocrystalline cells - these cells are substantially more efficient than silicon ones, but they're also substantially more expensive to make.